H9882
4-羟基苯肼
powder, ≥97%
别名:
4-羟基苯甲酰肼, p-羟基苯甲酸酰肼
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关于此项目
线性分子式:
HOC6H4CONHNH2
化学文摘社编号:
分子量:
152.15
NACRES:
NA.32
PubChem Substance ID:
UNSPSC Code:
12352204
EC Number:
226-326-5
MDL number:
Beilstein/REAXYS Number:
473052
产品名称
4-羟基苯肼, ≥97%
InChI key
ZMZGIVVRBMFZSG-UHFFFAOYSA-N
InChI
1S/C7H8N2O2/c8-9-7(11)5-1-3-6(10)4-2-5/h1-4,10H,8H2,(H,9,11)
SMILES string
NNC(=O)c1ccc(O)cc1
biological source
synthetic
assay
≥97%
form
powder
mp
264-266 °C (dec.) (lit.)
solubility
acetic acid: water (1:1): 25 mg/mL, clear, colorless to faintly yellow
fluorescence
λex 360 nm; λem 425 nm (reacted with 5-hydroxymethyl-furaldehydezinc acetate)
Quality Level
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Application
4-羟基苯甲酰肼可用于：
- 测定淀粉消化中麦芽糖的浓度
- 分析含食物水解产物的果聚糖中的糖
- 比色测定，预估加工饲料中的还原糖
Biochem/physiol Actions
4-羟基苯甲酰肼(PAHBAH)用于分析α-淀粉酶和葡糖淀粉酶活性。基于PAHBAH的分析方法可非特异性地比色测定（415nm）样品中存在的游离还原糖基。
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
Fang Xie et al.
International journal of biological macromolecules, 126, 525-530 (2018-12-28)
Starch-containing food normally has complex components and structure, which control its digestion kinetic properties and nutritional value. However, interactions among multiple food components and their effects on starch digestion kinetics are rarely reported. Here, we evaluated the influence of tea
Measurement of total fructan in foods by enzymatic/spectrophotometric method: collaborative study
McCleary BV, et al.
Journal of AOAC (Association of Official Analytical Chemists) International, 83(2), 356-364 (2000)
Extrusion induced low-order starch matrices: Enzymic hydrolysis and structure
Zhang B, et al.
Carbohydrate Polymers, 134(10), 485-496 (2015)
Glucoamylase (exo-1, 4-alpha-d-glucan glucanohydrolase, EC 3.2. 1.3) is the major starch-degrading enzyme secreted by the phytopathogenic fungus Colletotrichum gloeosporioides
Krause DR, et al
Microbiology, 137(10), 2463-2468 (1991)
Dongling Qiao et al.
Carbohydrate polymers, 144, 271-281 (2016-04-17)
Combined analytical techniques were used to explore the effects of alkali treatment on the multi-scale structure and digestion behavior of starches with different amylose/amylopectin ratios. Alkali treatment disrupted the amorphous matrix, and partial lamellae and crystallites, which weakened starch molecular
实验方案
Enzymatic Assay of Invertase
在测定转化酶活性时，使用了一种在410nm处的分光光度终点反应法进行测定。在55 ºC、pH 4.5条件下，一单位的转化酶每分钟可将1.0 μmole的蔗糖水解为转化糖。
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